*{
    padding: 0;
    margin: 0;
}
html{
    width: 100%;
    height: 100%;
}
body{
    width: 100%;
    height: 100%;
}
.background{
    width: 100%;
    height: 100%;
    background-color: #f0f0f0;
}
.sv-container{
    margin: 0 auto;
    width: 30%;
    height: 600px;
    background-color: #b3d4fc;
    position: relative;
}

.sv-cell{
    width: 80%;
    margin: 10px auto;
    height: 90px;
    background-color: #0000FF;
    position: relative;
}
.sv-handle{
    cursor: pointer;
    position: absolute;
    left: -30px;
    width: 80px;
    height: 20px;
    line-height: 20px;
    border: 1px solid black;
    z-index: 0;
}
.show-data{
    width: 30%;
    margin: 0 auto;
    text-align: center;
    color: #000;
}